tsebisa:
Li-cellulose ethers li sebelisoa haholo indastering ea kaho ka lebaka la ho boloka metsi a bona hantle, ho tiisa le ho kopanya thepa. Ba ntlafatsa phallo le ts'ebetso ea lisebelisoa tse thehiloeng ho samente le ho ntlafatsa thepa ea mochine ea sehlahisoa sa ho qetela. Li-putty li sebelisoa hangata indastering ea kaho ho tlatsa mapetsong, masoba le ho se phethahale ho hong maboteng le siling. Tšebeliso ea li-cellulose ethers ka li-putty powders li ka ntlafatsa ho sebetsa, ho beha nako le boleng ba kakaretso ba sehlahisoa. Sehlooho sena se tla tšohla phello ea li-viscosities tse fapaneng tsa cellulose ethers ho putty powder.
Mefuta ea li-cellulose ethers:
Ho na le mefuta e fapaneng ea li-cellulose ethers tse kenyeletsang methylcellulose (MC), hydroxypropylmethylcellulose (HPMC), ethylcellulose (EC) le carboxymethylcellulose (CMC). HPMC ke ether ea selulose e tsebahalang indastering ea kaho ka lebaka la ho boloka metsi hantle, ho tenya le thepa ea sekhomaretsi. HPMC e tla ka li-viscosity tse fapaneng, ho tloha tlase ho ea holimo.
Phello ea cellulose ether ho putty powder:
Putty phofo e sebelisetsoa ho tlatsa mapetsong, masoba le ho se phethahale ho hong ha marako le siling. Tšebeliso ea li-cellulose ethers ka li-putty powders li ka ntlafatsa ho sebetsa le ho beha nako ea sehlahisoa. Cellulose ether e ka boela ea ntlafatsa ho sebetsa le ho khomarela ha putty powder. Se latelang ke phello ea li-viscosities tse fapaneng tsa cellulose ethers ho putty powder:
1. HPMC ea viscosity e tlase:
The viscosity e tlaase HPMC e ka ntlafatsa metsi le ho sebetsa ha putty powder. E boetse e ntlafatsa nako ea ho beha sehlahisoa. Low-viscosity HPMC e na le mocheso o tlaase oa gelation, o ka thibelang phofo ea putty hore e se ke ea thatafala ka potlako. E ka boela ea ntlafatsa ho khomarela le ho kopana ha sehlahisoa. Low viscosity HPMC e loketse phofo ea putty e hlokang ho sebetsa hantle le ho boreleli.
2. Viscosity e mahareng HPMC:
Medium viscosity HPMC e ka ntlafatsa thepa ea thixotropic ea putty powder. E ka boela ea ntlafatsa ho boloka metsi le ts'ebetso ea tlamahano ea sehlahisoa. Medium-viscosity HPMC e ka ntlafatsa thepa ea mochini ea sehlahisoa, joalo ka matla le ho tšoarella. E loketse phofo ea putty e hlokang ho boloka metsi hantle le ho momahana.
3. High viscosity HPMC:
Viscosity e phahameng ea HPMC e ka ntlafatsa ts'ebetso e matla le e khahlanong le sag ea putty powder. E ka boela ea ntlafatsa ho boloka metsi le ts'ebetso ea tlamahano ea sehlahisoa. High viscosity HPMC e ka ntlafatsa thepa ea mochini ea sehlahisoa, joalo ka matla le ho tšoarella. E loketse phofo ea putty e hlokang ts'ebetso e matla le e khahlanong le sag.
ha re phethela:
Li-cellulose ethers li sebelisoa haholo indastering ea kaho ka lebaka la ho boloka metsi a bona hantle, ho tiisa le ho kopanya thepa. HPMC e fetohile ether ea cellulose e tsebahalang indastering ea kaho ka lebaka la thepa ea eona e ntle haholo. HPMC e tla ka li-viscosity tse fapaneng, ho tloha tlase ho ea holimo. Tšebeliso ea li-cellulose ethers tse nang le li-viscosities tse fapaneng li ka ntlafatsa ts'ebetso, ho beha nako, ts'ebetso ea thixotropic, ho boloka metsi, ts'ebetso ea bonding le thepa ea mechine ea putty powder. Tšebeliso ea li-cellulose ethers e ka ntlafatsa boleng le ts'ebetso ea li-putty powders, e leng se etsang hore li tšoanelehe bakeng sa likopo tse sa tšoaneng lefapheng la kaho.
Nako ea poso: Jul-20-2023